Hi all, i am starting a project that i develop android apps to control a remote dimmer through arduino board. however, the signal must pass through the arduino board, it also need a RS-232 port to connect a RS-232 wireless controller and the controller control the remote dimmer. a few questions t…

Using android phone to control remote dimmer

cyclegadget October 15, 2012, 3:19am 10

The voltages of RS232 are different and sometimes higher.

Look on this page about the middle area where it talks about voltages. RS-232 - Wikipedia

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